#include<iostream>
#include<iomanip>
using namespace std;

void main()
{
	int year;
	int month;
	int day;
	bool isValid = true;

	cout << "Year: ";
	cin >> year;
	cout << "Month: ";
	cin >> month;
	cout << "Day: ";
	cin >> day;

	if(month < 1 || month > 12)
	{
		isValid = false;
	}
	else
	{
		if(month == 2)
		{
			if(year % 400 == 0 || (year % 4 == 0 && year % 100 != 0))
			{
				if(day > 29 || day < 1)
				{
					isValid = false;
				}
			}
			else
			{
				if(day > 28 || day < 1)
				{
					isValid = false;
				}
			}
		}
		else if(month == 9 || month == 4 || month == 6 || month == 11) 
		{
			if(day > 30 || day < 1)
			{
				isValid = false;
			}
		}
		else
		{
			if(day > 31 || day < 1)
			{
				isValid = false;
			}
		}
	}


	if(isValid)
	{
		cout << "The date is valid" << endl;
	}
	else
	{
		cout << "The date is not valid" << endl;
	}



	////int - 4 byte whole number
	////float - 4 byte floating point number
	////double - 8 byte floating point number
	//const double GRAVITY = 9.8; //constant 

	//double time = 0;
	//double initialHeight;
	//double currentHeight;
	//double speed;

	//cout << "Initial height for object to fall from? ";
	//cin >> initialHeight;

	//cout.precision(4);
	//cout.setf(ios_base::fixed);

	//currentHeight = initialHeight;

	//int loopCounter = 100;

	//while(currentHeight > 0)
	//{
	//	speed = GRAVITY * time;
	//	currentHeight = initialHeight - (speed/2 * time);

	//	if(loopCounter == 100)
	//	{
	//		cout << setw(5) << time;
	//		cout << setw(10) << speed;
	//		cout << setw(10) << currentHeight << endl;
	//		loopCounter = 0;
	//	}
	//	loopCounter++;

	//	time = time + .0001;
	//}
	//cout << setw(5) << time;
	//cout << setw(10) << speed;
	//cout << setw(10) << currentHeight << endl;



}